These are nitrates , which are anions with the formula NO3- . A common form<span> of fertiliser is ammonium nitrate which has the formula NH4NO3 .</span>
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The story of the Trojan War—the Bronze Age conflict between the kingdoms of Troy and Mycenaean Greece–straddles the history and mythology of ancient Greece and inspired the greatest writers of antiquity, from Homer, Herodotus and Sophocles to Virgil. Since the 19th-century rediscovery of the site of Troy in what is now western Turkey, archaeologists have uncovered increasing evidence of a kingdom that peaked and may have been destroyed around 1,180 B.C.—perhaps forming the basis for the tales recounted by Homer some 400 years later in the “Iliad” and the “Odyssey.”
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A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. ... Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
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In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy.
The essential amino acids cannot be produced in the human body and hence these amino acids have to be obtained through the diet. Hence these amino acids have this characteristic that these cannot be produced in the human body and have to be obtained through diet this makes them essential. Hence those nine amino acids are considered as the essential amino acids.
